I purchased the 315 70 17's Duratracs on level 8's for the jku. I have a 3.5" Rock Krawler stock mod lift. First off Discount Tire is the best, second the GY Duratracs are awesome. I have 3.73's with the tracloc diff. So far in snow and ice on daily driving, wheelin in AZ desert mtns. with sand and rock and here in CO mtns on rock, mud, water, off camber and ledges the tires hook up hold and their very predictable handling is the best that I have ever encountered on and off road. After years of 4 wheeling they have to be the best tire that I have used to date. I have about 9000 miles on them and they still have 80% or better tread left, so wear is good. They still do not need rebalancing and are running smooth on the highway.